A system for processing video and/or audio signals is suggested. The system comprises a control unit and a processing unit. The control unit and the processing unit are communicatively connected for exchanging digital data in a packetized format. The proposed system allows splitting the processing ability of a big vision mixer into smaller sub units without losing real-time processing behavior. In addition to that a method of processing video and/or audio signals is suggested. The method utilizes a control unit and a plurality of processing units, which are communicatively connected for exchanging digital data in a packetized format. The method comprises the steps of receiving video signals at the processing units; sending video signals from the processing units; sending command signals from the control unit to one or several processing units; and scheduling the execution of command signals received in the processing units to compensate for signal latencies and processing latencies.
Legal claims defining the scope of protection, as filed with the USPTO.
1. System for processing video and/or audio signals, wherein the system comprises a control unit and two or more processing units, wherein the control unit and the processing units are communicatively connected by data links for exchanging digital data in a packetized format, wherein the data links are adapted to provide for latencies which are targeted to be constant, wherein the packetized data represent the video and/or audio signals, and command signals communicated between the control unit and the two or more processing units, wherein each processing unit comprises means for compensating signal latencies caused by signal communication between the control unit and one of the two or more processing units and/or between the two or more processing units characterized in that and each processing unit is associated with a command scheduler forwarding command signals to a delay stage of the associated processing unit, wherein the delay stage in the associated processing unit enables synchronized switching between the two or more processing units by compensating command signal latencies and latencies introduced by processing times.
2. System according to claim 1 , wherein the one processing unit or the plurality of processing units comprise(s) one or several graphical processing units (GPU).
3. System according to claim 1 , wherein the system is adapted for determining latencies of the video and/or audio signals, and the command signals transmitted through the data links.
4. System according to claim 1 , wherein the means for compensating signal latencies comprise adaptable delays.
5. System according to claim 1 , wherein the one processing unit executing a last processing step of the video and/or audio signals is adapted for executing this last processing step only after this one processing unit has received all necessary input signals from other processing units of the system.
6. System according to claim 1 , wherein the control unit comprises a processing unit.
7. Method of processing video and/or audio signals utilizing a control unit and a plurality of processing units, which are communicatively connected by data links for exchanging digital data in a packetized format, wherein the data links are adapted to provide for latencies which are targeted to be constant, and wherein the method comprises: receiving the video and/or audio signals at the processing units; sending the video and/or audio signals from the processing units; sending command signals from the control unit to several processing units; scheduling the execution of the command signals received in the processing units by introducing one delay or several delays for the command signals in one or more delay stages of the several processing units to compensate for signal latencies caused by the signal communication between the control unit and the several processing units and to enable synchronized switching between the several processing units by compensating command signal latencies and latencies introduced by processing times.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
July 1, 2013
October 4, 2016
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